Quran.comOne of the most user-friendly of the several Qur'an databases available:
Arabic text in parallel with English; Choice of up to six English translations; Text searchable in Arabic or English
NOTE: In order to search the Arabic text, you'll need to enter the search phrase in Arabic; one can key in the Arabic text using an online Arabic keyboard, such as Lexilogos arabe, and copy-and-paste the text into the Quran.com search box.